206157029 has 4 divisors (see below), whose sum is σ = 222015276. Its totient is φ = 190298784.

The previous prime is 206157023. The next prime is 206157047. The reversal of 206157029 is 920751602.

206157029 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 94284100 + 111872929 = 9710^2 + 10577^2 .

It is not a de Polignac number, because 206157029 - 2⁴ = 206157013 is a prime.

It is a super-2 number, since 2×206157029² = 85001441212213682, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 206156986 and 206157004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206157023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7929104 + ... + 7929129.

It is an arithmetic number, because the mean of its divisors is an integer number (55503819).

Almost surely, 2^206157029 is an apocalyptic number.

It is an amenable number.

206157029 is a deficient number, since it is larger than the sum of its proper divisors (15858247).

206157029 is a wasteful number, since it uses less digits than its factorization.

206157029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15858246.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 206157029 is about 14358.1694167467. The cubic root of 206157029 is about 590.7440856112.

The spelling of 206157029 in words is "two hundred six million, one hundred fifty-seven thousand, twenty-nine".